Watch and clock regulator



July 10, 1945. v 1 CAMPAU 2,380,292

WATCH AND CLOCK REGULATOR Filed March 13, 1944 ZQWfUCM Cam mm.

Patented July 10, 1945 UNITED STATES PATENT OFFICE WATCH AND CLOCK REGULATOR Lawrence M. Campau, Detroit, Mich.

Application March 13, 1944, Serial No. 526,165

2 Claims.

This invention relates to a watch or clock regulator and its principal object is to provide simple and inexpensive means whereby a person may regulate a watch'or clock by moving the regulating lever a minute distance each time it is moved. Another object is to provide means whereby a minute step by step movement of the regulating lever is obtained. Another object is to provide means for limiting the amount of movement of the regulating lever of watches or clocks, which may be applied to the universal or standard watches or clocks which employ such a regulating lever.

With these and other objects and advantages in view this invention consists in the several novel features hereinafter fully set forth and claimed.

The invention is clearly illustrated in the drawing accompanying this specification, in which:

Fig. 1 is a rear elevation of the back wall of a clock case partly broken out, the clock spring regulating lever and the escape mechanism of the clock, illustrating one form of the present invention.

Fig. 2 is a horizontal section taken on the line 2-2 of Fig. 1.

Fig. 3 is a vertical cross section taken on the line 3-3 of Fig. 1.

Fig. 4 is a fragmental rear elevation illustrating a modified form of the invention.

Referring to said drawing and first to Figs. 1 to 3 inclusive, the reference character ll] designates the back wall of a clock case containing a conventional clock works-l I designates the hair spring-42 the regulating lever and I3 the escape mechanism. As is well understood, the regulating lever is provided with a tail piece 14 which engages the hair spring and comprises the means whereby the clock works are speeded up or slowed down. Usually a graduated scale I5 is associated with the regulating lever and at the ends of the scale are usually placed the letters S and F to indicate slow and fast. The regulating lever is visible and accessible through an opening I 6 in the back wall of the clock case and usually a nail or some other handy instrument is used in an effort to adjust the regulating lever to cause the clock. Works to run faster or slower, but it is well known that it is almost impossible for the average person to move the regulating lever to any definite place.

In accordance with one form of the invention I provide a bridge I! which bridges the opening IS in the back Wall of the clock case and this bridge extends in front of the regulating lever and is secured to said back wall by screws l8. In

the bridge I! are formedclosely spaced apertures IS. A pin 20 or other small prying tool may be thrust through the aperture next adjacent the regulating lever and by using the bridge as a fulcrum the pin may be rocked slightly with its pointed end in engagement with the side edge of the regulating lever. In this manner the regulating lever may be moved a minute distance each time and may be brought to the exact-position desired.

In the modified form shown in Fig. 4 there are two arcuate rows of closely spaced perforations [9a, Illa formed in the back wall of the clock case adjacent the opening 16a and in front of the regulating lever, 12a. By making two rows of perforations, the perforations may be placed, closer thus enabling one to make a still finer adjustment of the regulating lever. As in the form illustrated in Fig. 1, a pin or other small prying instrument may be inserted through the aperture next adjacent the regulating lever and rocked against the side edge of the lever to thereby move it a minute distance.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described, or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. A watch or clock regulator comprising a regulating lever, a clock case having an opening in a wall thereof through which access may be had to said lever, and a bridge overlying said opening and lever and secured to the clock case, said bridge having a multiplicity of closely spaced apertures therein through which a prying instrument may be inserted and rocked against the edge of the regulating lever to move it a minute distance.

2. A watch or clock regulator comprising a regulating lever, a clock case having an opening LAWRENCE M. CAMIPAU. 

